ni...@lysator.liu.se (Niels Möller) writes:
Maybe easier to wait until asm files are updated so that
HAVE_NATIVE_mpn_gcd_1 implies HAVE_NATIVE_mpn_gcd_11. Or was it some
particular call site you had in mind?
I have seen calls to gcd_1 which could use gcd_11, presumably from
mpn_gcd (or its descendant),
I expect asm gcd_1 to disappear as the C code should be equivalent. Do
you agree?
I suppose some hardwired stuff for the case u >> v (not bitshift, the
mathematical meaning of >>!) might want to be parameterised and also
ideally tune/tuneup'ed.
I'm speaking of this code:
/* if u is much bigger than v, reduce using a division rather than
chipping away at it bit-by-bit */
if ((ulimb >> 16) > vlimb)
{
.
.
.
(16 seems like a huge default value, btw.)
--
Torbjörn
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